I have a rear view mirror off a jaguar s type. It has a sensor up top as well (I'm assuming a rain sensor). I believe it has a compass as well, but would have to plug it back in to double check. If interested, feel free to pm me. I am not sure whether it is compatible with other models. I will post pics for interested parties.

 

What year was the Stype that it came out of? I have an 03 stype with a rainsensing wiper mirror and would like to have one with the compass. I'll wait to see what year the stype was that it came off of. Thanks